From emyers at snf.stanford.edu Fri Apr 18 13:45:29 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 18 Apr 2008 13:45:29 -0700
Subject: Problem afm2 SNF 2008-04-18 13:45:28: No Cantilever Holder
Message-ID:
Veeco did not return our only Cantilever holder. The scanner is back on the machine, but I don't know how we can use the system unless someone has a spare cantilever holder they can loan. I am trying to contact Veeco to find out what happened.
From emyers at snf.stanford.edu Fri Apr 18 13:45:55 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 18 Apr 2008 13:45:55 -0700
Subject: Problem afm2 SNF 2008-01-29 09:30:30: Loose wire
Message-ID:
Scanner sent out to Veeco for repair
From emyers at snf.stanford.edu Fri Apr 18 13:46:21 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 18 Apr 2008 13:46:21 -0700
Subject: Problem afm2 SNF 2008-02-24 21:01:53: engagement problem
Message-ID:
Problem not seen by others.
From emyers at snf.stanford.edu Fri Apr 18 13:46:32 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 18 Apr 2008 13:46:32 -0700
Subject: Problem afm2 SNF 2008-02-29 09:43:09: load/unload
Message-ID:
Problem not seen by others
From emyers at snf.stanford.edu Fri Apr 18 13:46:43 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 18 Apr 2008 13:46:43 -0700
Subject: Problem afm2 SNF 2008-03-18 14:27:14: no laser
Message-ID:
Scanner sent out to Veeco for repair
From emyers at snf.stanford.edu Fri Apr 18 14:09:12 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 18 Apr 2008 14:09:12 -0700
Subject: Shutdown afm2 SNF 2008-03-19 13:12:20: Scanner Removed For Repair
Message-ID:
Scanner is back but Veeco did not return our tip holder.
From emyers at snf.stanford.edu Mon Apr 21 11:42:59 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Mon, 21 Apr 2008 11:42:59 -0700
Subject: Problem afm2 SNF 2008-04-18 13:45:28: No Cantilever Holder
Message-ID:
New Cantilever Holder Arrived
From emyers at snf.stanford.edu Mon Apr 21 11:45:10 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Mon, 21 Apr 2008 11:45:10 -0700
Subject: Comment afm2 SNF 2008-04-21 11:45:07: Return from Repair
Message-ID:
The system is back and running. We have a new laser, PC board and Cantilever holder. I was getting strong reflection off teh tip and the drive voltage coupling was great, as low as 70mv. The images were much clearer and did not have the streaking we had been seeing. Please be careful with the system. We broke the wiring in less than a year, compared to many years in the past
From bdai at snf.stanford.edu Fri Apr 25 15:39:04 2008
From: bdai at snf.stanford.edu (bdai at snf.stanford.edu)
Date: Fri, 25 Apr 2008 15:39:04 -0700
Subject: Problem afm2 SNF 2008-04-25 15:39:04: Problem with Engage
Message-ID:
Adjusted tip / sample surface distance to about 2mm. Then clicked "engage". The head was lowered down quickly without any stop until crashed the cantilever. Seems the step size of 'engage' and 'withdraw' is too large. I adjusted it to be less than 200nm but didn't see any change when I tried to re-engage with a new tip. No idea how to deal with this problem and had to give up the session.
From emyers at snf.stanford.edu Fri Apr 25 16:24:09 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 25 Apr 2008 16:24:09 -0700
Subject: Problem afm2 SNF 2008-04-25 15:39:04: Problem with Engage
Message-ID:
System is set up to focus on the tip reflection a couple of mm above the sample surface. I tested it twice and had no problems. I also changed the parameter so the tip stays engaged with the surface instead of backing off. Who ever keeps changing this, please stop.
From hector at snf.stanford.edu Sat Apr 26 19:42:59 2008
From: hector at snf.stanford.edu (hector at snf.stanford.edu)
Date: Sat, 26 Apr 2008 19:42:59 -0700
Subject: Shutdown afm2 SNF 2008-04-26 19:42:59: bad laser stage
Message-ID:
laser stage does not move back and forth in Y direction; needs to go back to factory for repair
From emyers at snf.stanford.edu Tue Apr 29 09:53:04 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Tue, 29 Apr 2008 09:53:04 -0700
Subject: Shutdown afm2 SNF 2008-04-26 19:42:59: bad laser stage
Message-ID:
Yes, the X-Y laser movement is bad. It can be used if you are careful about laser positioning, but it is not easy. I am trying to get ahold of Veeco for them to continue the repair.
From emyers at snf.stanford.edu Tue Apr 29 09:53:26 2008
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Tue, 29 Apr 2008 09:53:26 -0700
Subject: Problem afm2 SNF 2008-04-29 09:53:25: Poor x-y laser control
Message-ID:
Yes, the X-Y laser movement is bad. It can be used if you are careful about laser positioning, but it is not easy. I am trying to get ahold of Veeco for them to continue the repair.